Fuller has a rather lean build and could stand to add more functional bulk and strength. He is better in coverage than he is in run support. He can recognize routes and does a good job of reading the quarterback's eyes to get a jump on the ball from deep coverage. He is a little stiff in the hips and looks a bit sloppy in transition but once he gets realigned, he shows a decent burst to close on the ball.

The move was likely a reaction to injury concerns in the Detroit secondary. Safeties Erik Coleman (ankle) and Amari Spievey (hamstring) are both banged up. Coleman had to leave the game last Sunday after suffering an injury on kickoff coverage, and could be out for a few weeks. Spievey was in practice on Wednesday, but ran off the field after stretching with the team.